@michel Ok, thanks--that's good to know! I have one more question: I was looking up the Matrox Triplehead2go and noticing that it costs over 200 dollars. Would you happen to know of an alternative that can be used to connect 3 hdmi projectors to a MacBook Pro 15" that will still be compatible with Isadora?

@michel I have 4 thunderbolts but no HDMI. I only have one thunderbolt to HDMI adapter, so 2 more would cost quite a bit as well--but still cheaper than the triple head, so might go that route instead.